#free

CowBull – Bulls and Cows word game

A free, multiplayer word game implementation of Bulls and Cows (like Wordle). Solo mode, shared game links, no accounts needed.

SkyLens — Live 3D Satellite Tracker + Declassified UAP Archive

Interactive 3D real-time satellite tracker combined with a curated archive of 375+ declassified government UAP case files, NASA asteroid tracking, and space news. Free, no signup required, RSS feed available.

Shoehorn — Quantize LLMs to your hardware

Interactive browser-based tool for quantizing large language models to fit your personal machine. Scans Hugging Face's most-downloaded models, estimates which ones fit your specific hardware (Mac, GPU, custom configs), visualizes memory budgets, then provides a local CLI app and web interface to run the chosen model via llama.cpp. Combines practical utility with a clean, hands-on approach to a niche problem.

Folding Paper Globes

Free printable paper globe templates for Earth, the Moon, Mars, and other celestial bodies, plus data visualization globes showing earthquakes, volcanoes, ocean temperature, and more. Download, print, cut, fold, and glue to create physical 3D globes.

OmniDeck: Indie Developer Tool Suite

Handcrafted collection of browser-based utilities (JSON formatter, password generator, QR codes, hash functions, image compression, SEO auditor, regex tester, etc.) built entirely in vanilla JavaScript. 100% client-side, free, no signup required, emphasis on privacy and zero friction.

RecipeTables

A handcrafted web tool that converts recipes into an innovative prep-table format (ingredients as rows, steps as merged columns), making recipes readable at a glance. Built by Juan Buis with daily improvements. Supports URL/text/image upload, library browsing, scaling, exporting, and sharing.

clipart.studio — magazine collage maker

A delightful digital collage tool. Pick magazines from the Internet Archive, clip pieces you want, arrange them on the page, download or submit to the public gallery. Thoughtfully designed interface with keyboard shortcuts, undo/redo, and playful aesthetics.

WhatCable: USB-C cable diagnostic tool

A free Mac app that displays USB-C cable specifications, negotiated power profiles, and e-marker data to help diagnose charging bottlenecks. Solves a real technical problem—determining whether cable, charger, or device is limiting charge speed.

Neil the Seal - 3D Browser Game

A free 3D browser game where you play as an elephant seal causing mischief in suburban Tasmania. Indie game with character, WASD controls, environmental interaction, and a playful vibe.

So You Want to Learn Physics

Hand-curated self-study physics curriculum by Susan Rigetti. A comprehensive learning guide used by 600,000+ readers to learn physics from first principles, with an updated second edition (2021).

Decoy Font

Interactive TTF font that combines each letter with a visual decoy, using spatial frequency separation to hide text from AI readers. Includes a working demo and free download.

CourtListener

Free legal research from Free Law Project. Search millions of court opinions and oral arguments.

Google Fonts

Free, open-source font library. Over 1,500 font families to use in web and print projects.

Font Squirrel

Free fonts licensed for commercial use. Also offers a webfont generator for self-hosting.

Khan Academy

Free education for anyone, anywhere. Math, science, computing, and more with personalized learning.

OSSU Computer Science

Path to a free self-taught CS education. 200K+ stars. Complete curriculum using free online courses.

Free Programming Books

Freely available programming books in many languages. 350K+ stars. The ultimate free learning resource.

Awesome Stock Resources

Collection of free stock photography, video, and illustration websites.

Unsplash

Beautiful free images. High-quality photos contributed by photographers worldwide.

Pexels

Free stock photos and videos. High quality, no attribution required.

MIT OpenCourseWare

Free MIT course materials. Lectures, notes, and assignments from real MIT classes.

freeCodeCamp

Learn to code for free. Full curriculum from HTML to machine learning.

The Odin Project

Free full-stack web development curriculum. Project-based learning path.

Full Stack Open

Deep dive into modern web development. University of Helsinki's free course.

Crafting Interpreters

Free book on implementing programming languages. Build two interpreters from scratch.

Eloquent JavaScript

Free book on JavaScript and programming. A modern introduction with exercises.

Freesound

Collaborative database of Creative Commons licensed sounds. Field recordings, synths, and effects.

Awesome Open Source Games

Curated list of open source games organized by genre. From FPS to puzzle games.

Duolingo

Free language learning. Gamified lessons in 40+ languages with millions of users.

Language Transfer

Free audio courses teaching thinking methods for languages. Spanish, French, German, and more.

Kongregate

Free browser games. Thousands of indie games playable instantly.

ccMixter

Creative Commons music remixes. Free music for your projects.

Incompetech

Kevin MacLeod's royalty-free music. Thousands of tracks for any project.

Bensound

Royalty-free music for videos and projects. Quality background tracks.

Flaticon

Free vector icons database. Millions of icons in multiple formats.

Game Jolt

Platform for indie games and game jams. Discover weird, wonderful games from independent developers.

Internet Encyclopedia of Philosophy

Peer-reviewed academic resource on philosophy. Accessible yet rigorous articles.

Pro Git

The official Git book. Free, comprehensive, and authoritative.

PortSwigger Web Security Academy

Free web security training. Learn to find and exploit vulnerabilities.

Darebee

Free fitness resource. Workouts, programs, and challenges with no ads or fees.

MIT Physics OCW

Free MIT physics courses. From mechanics to quantum field theory.

Feynman Lectures

Richard Feynman's legendary physics lectures. Free online edition.

PubMed Central

Free archive of biomedical research. Millions of full-text articles.

Sci-Hub

Free access to research papers. Controversial but used by millions.

Library Genesis

Free access to books and papers. Shadow library for research and textbooks.

Project Gutenberg

The original free ebook library. Over 70,000 public domain books, started in 1971.

LibriVox

Free public domain audiobooks read by volunteers. Thousands of classic books in audio format.

JSTOR Open Content

Free access to thousands of academic articles and books. Scholarly research without paywalls.

Open Culture

Free cultural and educational media. Courses, books, films, and more.

Thingiverse

3D printing model repository. Free designs for anything you can print.

Webtoon

Digital comics platform. Thousands of free webcomics to read.

Photopea

Free online photo editor that rivals Photoshop. Runs entirely in the browser, supports PSD files.

TinyWow

Collection of free online tools for PDFs, images, videos, and documents. No signup, files deleted after processing.